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In this paper,basing on the theory of the infrared divergent response in ultrasonic absorption inglasses,the condition of existence of the second weaker peak of ultrasonic absorption and the weakerpeak‘s response to ultrasonic frequency in GeO_2 and B_2O_3 glass is studied.The results are in good agreementwith the experimental data. 相似文献
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本文将红外发散响应理论应用到集团自旋玻璃体系中磁集团取向变化弛豫过程,研究自旋玻璃体系(COF_7)_(0.5)(BaF_2)_(0.2)(NaPO_3)_(0.3)的低温超声吸收特性。结果表明T<4.0K时,超声吸收的磁贡献部分主要来自于磁集团的集体转向弛豫过程;T>4.0K时,超声吸收的磁贡献部分是集团集体转向过程和集团内部贡献的迭加。 相似文献